Placement groups

Placement groups are a great way to improve the network performance (the highest packets per second between instances) and the lowest latency for intensive applications by co-locating instances physically in the same hardware.

The spread placement groups extends the single hardware limitations of a placement group by using different distributed hardware, eliminating single points of failure.

Creating a placement group

1. To create a placement group, navigate to EC2, and select Placement groups and Create Placement Group, as follows:

2. The allocation of instances inside the placement group is a one-time-only action. If you want to modify the placement group by adding instances—you'll need to relaunch...